Finding the Fourth Proportional to 149,039.48, 223,561.78 and 42,426.18

Step by Step Solution

1. Step 1: Write the proportion equation
   149,039.48 : 223,561.78 = 42,426.18 : x
2. Step 2: Convert to fraction form
   149,039.48/223,561.78 = 42,426.18/x
3. Step 3: Cross multiply
   149,039.48x = 223,561.78 × 42,426.18
4. Step 4: Simplify right side
   149,039.48x = 9,484,872,213.33
5. Step 5: Solve for x
   x = 9,484,872,213.33/149,039.48
6. Step 6: Final answer
   x = 63,640.00